Food grade jet inks
US5800601A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 1997 |
| Grant date | Sep 1, 1998 |
| Priority date | — |
| Expiry date | Mar 14, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B67/001
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides jet ink compositions that are free or substantially free of sedimentation, have good image adhesion and rub resistance, and that are suitable for printing messages on food items such as fruits, vegetables, chocolate, candies, confectioneries and pharmaceuticals such as tablets, and other edible or ingestible materials. The jet ink compositions comprise a surface modified or coated colorant. The surface modified or coated food grade colorant comprises a food grade colorant of particle size in the range of from about 0.01 micron to about 25 microns, a colorant carrier, and a surface modifying or coating agent. The surface modifying or coating agent comprises at least one binder resin, and preferably two or more binder resins.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.